PopupWindow is above status bar in some device

Question

Here is my code for show a PopupWindow

View rootView = activity.getWindow().getDecorView().getRootView();
mPopupWindow.showAtLocation(rootView, Gravity.NO_GRAVITY, 0, 0);

When I test it on Samsung, Nexus device it show below the status bar
However when I test it on Sony device it show above the status bar (like the image below)

So which device display correct or what I do wrong ? Any help or suggestion would be great appreciated

Answer 1

I solve my problem by create a temp View at top-left (topLeftView in below code).
Then when I show the PopupWindow, I will show it at (0, the y coordinate of topLeftView) not (0,0)

View topLeftView = findViewById(R.id.top_left_View);
int topLeftPos[] = new int[2];
topLeftView.getLocationOnScreen(topLeftPos);

mPopupWindow.showAtLocation(topLeftView, Gravity.NO_GRAVITY, 0, topLeftPos[1]);

I think this solution will work for all devices